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Science Vocabulary

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Across
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The rigid outermost shell of a terrestrial type planet or natural satellite that is defined by its rigid properties.
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The most basic building blocks of all living things.
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A rock that was once one form of rock, but has changed to another due to heat, pressure, or another agent.
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A fault line where two tectonic plates slide past each other horizontally.
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A boundary where two tectonic plates move towards each other.
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The action of revolving around an object.
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A scientific instrument used for observing small objects.
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A suit that astronauts wear to survive the conditions of space.
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The four largest moons that revolve Jupiter, discovered by Galileo.
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The color of powder produced from a mineral when scratched upon a hard surface.
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A rock that is formed through the cooling of magma.
Down
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A rock formed by layers of materials that have been squeezed and hardened.
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When two plates move away from each other.
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A missile, spacecraft, aircraft, or other vehicle that obtains the thrust from a rocket engine.
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A force of attraction by which terrestrial bodies tend to fall towards the center of the earth.
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Massive, irregular slabs of the lithosphere that move above the asthenosphere.
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The region below the lithosphere and on top of the mantle.